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Event Detail Information

Event Detail Information

Speaker Thomas Baumgarte (Bowdoin College)
Date Mar 19, 2014
Time 12:00 pm  
Location 464 Loomis
Sponsor Department of Physics
Contact Milton Ruiz
Event type Seminar
Views 1078
Spherical polar coordinates have many desirable properties for simulations in relativistic astrophysics. In the absence of symmetry conditions, however, numerical relativity simulations in spherical polar coordinates have been hampered by problems associated with coordinate singularities. In this talk I will discuss a new approach that does not require regularization of the singular terms, and instead employs a reference-metric formulation of the BSSN equations, a proper rescaling of the dynamical variables, and a partially-implicit Runge-Kutta integration scheme. I will review these ingredients, and will then present some tests and early applications.